132 



FLOBA OF NEW ZEALAND. 



\Hepaticce . 



The amiotinous appearance in the branches of this fine species, is chiefly evident in the male plants. 



9. Plagiochila radiculosa, Mitten j caule repente, ramis prostratis latere ventrali radiculosis apicibus 

 adscendentibus ramosis, foliis imbricatis patenti-divergentibus semicordatis apice bidentatis unidentatis inte- 

 gerrimisve margine dorsali paullulum reflexo ventrali basi dilatato cristato, involucralibus latioribus mar- 

 gineque ventrali denticulato, perianthio immaturo late obconico ore truncate- denticulate (Tab. XCVI. 

 Kg. 1.) 



Hab. Northern Island : on Wemmatmia bark, Tarawera, Colenso. 



Fusco-virens. Rami bi-tripollicares, innovationibus ramosi, radicellis ad basin perianthii pallidis. Folia ex- 

 planata, dorso in caulem longe decurrentia ; involucralia suborbicularia. PeriantMum immaturum, compressum. 



This resembles P. Mauritiana, Nees, and P. repanda, [Schw.] Ldbg., but differs from both in its decumbent or 

 apparently dependent stems, which are also covered with rootlets on the ventral side. The mouth of the perianth 

 too is truncate, and without any wing on the dorsal side. The cells of the leaves are larger than those of P. Mau- 

 ritiana, and the leaves themselves wider near their bases, and more narrowed towards their apices. — Plate XCVI. 

 Fig. 1 :— 1, a plant, natural size; 2, a portion of the stem with leaves; 3, a portion of a leaf with cells; 4, a pe- 

 rianth with involucral leaves : — all magnified. 



10. Plagiochila incurvicolla, Hook. fil. et Tayl. ; caule repente, ramis suberectis fiexuosis parum ramu- 

 losis apicibus decurvis, foliis ovatis semicordatisve patentibus margine dorsali recurvo remote dentato mar- 

 gine ventrali apiceque spinoso-dentato, perianthio oblongo-clavato compresso ore labiis rotundatis dentatis. 

 —Lond. Joum. Boi. 1844, p. 564. Syn. Hep. p. 651. (Tab. XCVI. Kg. 2.) 



Hab. Northern and Middle Islands : Auckland, Sinclair. Wairarapa valley, Colenso. Port Preserva- 

 tion and Milford Sound, Lyatt. 



Fusco-viridis. Caidis intricatus. Rami biunciales, flexuosi, vage ramulosi. Folia rigidula, areolis minutis. 

 PeriantMum 2 lin. longum, angustum. Capsula parva, breviter pedicellata. 



Not unlike some states of P. fasciculata in general appearance, but wanting the fasciculate branches of that 

 species. The leaves are of nearly the same form as those of P. spinulosa and P. fasciculata, but their dentate dorsal 

 margin distinguishes this species from all its allies. — Plate XCVI. Fig. 2 : — 1, a plant, natural size ; 2, a portion 

 of the stem with leaves ; 3, a leaf detached from the stem ; 4, a portion of the same with cells ; 5, perianth and cap- 

 sule : — all magnified. 



11. Plagiochila Lyattii, Mitten; caule repente, ramis erectis dichotome subfasciculatim ramosis, foliis 

 subremotis imbricatis late ovatis vel semicordatis margine dorsali integerrimo decurvo ventrali deflexo api- 

 ceque spinoso-dentato involucralibus conformibus argutius dentatis, perianthio late obconico compresso ore 

 spinuloso-denticulato. (Tab. XCYI. Pig. 4.) 



Hab. Northern and Middle Islands : amongst Sendtnera flagellifera. Port Preservation, Lyall. 

 Auckland, Sinclair. 



Rami tripollicares, graciles, flexuosi; fceminei dichotomi; masculi fasciculati, partes juniores intensius fusco- 

 virentes, vetustiores pallide fusci; Folia rigidula, minutissime areolata, perigonialia parva, imbrieata, apice trispinosa. 



This slender species has much resemblance to P . fasciculata, Ldbg., but is of a different habit: the leaves are 

 more rigid, not altered in their position when dry, and more minutely areolate. P. incurvicolla differs in the denti- 

 culate dorsal margins of its leaves. — Plate XCVI. Fig. 4 :— 1, male and female plants, natural size; 2, a portion 

 of the stem, with leaves ; 3, a leaf detached from the stem, as seen on the underside ; 4, a perianth and involucral 

 leaf ; 5, a portion of a male spike, with perigonial leaves ; 6, a portion of a leaf with cells : — all magnified. 



12. Plagiochila fasciculata, Lind., Sp. Sep. t. 1; Syn. Hep. p. 27 et 630. 



Hab. Northern and Middle Islands : Bay of Islands, J. D. If. Port Nicholson and Port Underwood, 

 Lyall. Wellington, Stephenson. On trees, Tehawera, Colenso. 



